two year old refuses to eat!

and it's driving me nuts! to the point where I'm going to cry!

I need advice on how to get her to eat, and not freak out. This has been going on since Saturday (her birthday), and I don't know what to do. anything I get close to her mouth she turns away and starts her fake crying. she won't even take a bite.

she might be a little sick, but it's more than not feeling good. she runs around like crazy, and she still wants snack food, but I'm not giving her sugar to fill up on!

what have you done that's worked on your kids when they don't eat anything?